﻿// -----------------------------------------------------------------------
// <copyright company="www.3WayWebdesign.de">
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// </copyright>
// 
// <author>Michael Morbach</author>
// <email>Michael@3waywebdesign.de</email>
// <web>http://www.3waywebdesign.de</web>
// ----------------------------------------------------------------------

using System;
using System.Windows;
using Microsoft.Practices.Prism.PubSubEvents;
using Microsoft.Practices.Prism.Regions;
using Microsoft.Practices.Unity;
using Tww.Wpf.Controls.Controls.Menus.ExpandMenu;

namespace Tww.Paf.Api.Components.NavigationMenu
{
    public class NavigationMenu : ExpandMenu, INavigationMenu
    {
        #region  - Felder (privat) -

        private readonly IRegionManager regionManager;
        private readonly IUnityContainer unityContainer;

        #endregion

        #region  - Konstruktoren -

        public NavigationMenu()
        {
        }

        public NavigationMenu(IUnityContainer unityContainer)
        {
            this.unityContainer = unityContainer;
            this.regionManager = unityContainer.Resolve<IRegionManager>();

            CreateNavigationMenuRegion();
        }

        #endregion

        #region  - INavigationMenu Members -

        /// <summary>
        ///     Gets or sets the navigation menu title.
        /// </summary>
        /// <value>
        ///     The navigation menu title.
        /// </value>
        public string NavigationMenuTitle
        {
            get { return this.Header; }
            set { this.Header = value; }
        }

        #endregion

        #region  - Methoden (privat) -

        protected override void OnInitialized(EventArgs e)
        {
            base.OnInitialized(e);

           
            this.SelectedItemChanged += OnSelectedItemChanged;
        }

        private void CreateNavigationMenuRegion()
        {
            RegionManager.SetRegionName(this, RegionNames.NavigationMenuRegion);
            RegionManager.SetRegionManager(this, regionManager);
        }

        private void OnSelectedItemChanged(object sender,
            RoutedPropertyChangedEventArgs<object> routedPropertyChangedEventArgs)
        {
            if (this.unityContainer != null)
            {
                var eventAggregator = this.unityContainer.Resolve<IEventAggregator>();
                var selectedItemEvent = eventAggregator.GetEvent<NavigationMenuItemSelected>();
                selectedItemEvent.Publish(this.SelectedItem as INavigationMenuItem);
            }
        }

        #endregion
    }
}